Conference Presentation (Invited)

FZJ-2025-00038

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Neutron scattering studies of magnetic topological kagome metals

Su, Y.FZJ*

2023

Abstract: Magnetic topological kagome metals, in which topologically non-trivial band structures, magnetism and electronic correlation effects can often be intertwined, have recently emerged as an exciting platform to explore exotic states and novel functionalities. In this talk, I will mainly present our recent single-crystal neutron diffraction studies of complex magnetic orders in several archetypical magnetic kagome metals, including the realization of flat-band engineered spin-density wave in the magnetic Weyl semimetal Mn$_3$Sn [1], as well as the observations of various field-induced magnetic phases that give rise to the emergent topological Hall effect in the magnetic kagome metal RMn$_6$Sn$_6$ [2].We thank Xiao Wang, Fengfeng Zhu, Yishui Zhou as well as many other co-workers and collaborators for their contributions.[1] X. Wang, et al., arXiv: 2306.04312 (2023).[2] Y. Zhou, et al. (unpublished).

Keyword(s): Magnetic Materials (1st) ; Information and Communication (1st) ; Magnetism (2nd) ; Condensed Matter Physics (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS-FRM-II)
2. Heinz Maier-Leibnitz Zentrum (MLZ)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4) (POF4-6G4)

Experiment(s):

1. DNS: Diffuse scattering neutron time of flight spectrometer (NL6S)
2. HEiDi: Single crystal diffractometer on hot source (SR9b)
3. ILL-IN12: Cold neutron 3-axis spectrometer
4. PUMA: Thermal three axes spectrometer (SR7)
5. Measurement at external facility

Appears in the scientific report 2024

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